I have the Sony DAV-DX150. Has worked great for 2 yrs. Out of the blue, it developed volume problems (no changes, have not added new components, have not moved the system) Suddenly my volume is very low. Strangely enough, when I first turm on the system, it registers a very loud volume (I have it on the max) then very quickly fades to super low. The manual does not give an option for fading from high to low volume, so I did not "accidently" press a button to get it to do that. I changed everything back to factory preset, but no luck. Does anyone have any ideas what happened, and more importantly, how to fix it? For the record, I have it set up with a Sony WEGA tv, and a Direct TV box/DVR and a separate VCR. Thanks in advance